Question

在Python上将分辨率更改为300x300后，我尝试保存视频，但是使用

保存后我的视频无法播放

0xc10100be error: "This file isn't playable. That might be because the file type is unsupported, the file extension is incorrect, or the file is corrupt."

这是我的程序：

import numpy as np
import cv2

cap = cv2.VideoCapture("F:\\mi\\Camera\\2b7d9eccaddffffe3c9ba70b7fe6c12e(0).mp4")
cv2.namedWindow("vid1", 0)
cv2.resizeWindow("vid1", 300,300)

fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('output.avi', fourcc, 20.0, (300,300))

while(cap.isOpened()):
    ret, frame = cap.read()
    cv2.imshow('vid1',frame)
    out.write(frame)                            
    if cv2.waitKey(25) & 0xFF == ord('q'):
        break

cap.release()
out.release()
cv2.destroyAllWindows()

怎么了？

Answer 1

在我看来，您对“ out”不做任何事情。

您应该添加：

out.write(frame)

在循环内部。

Answer 2

问了我老师这个问题之后，他修好了我的程序：

import numpy as np
import cv2

cap = cv2.VideoCapture("F:\\mi\\Camera\\2b7d9eccaddffffe3c9ba70b7fe6c12e(0).mp4")
cv2.namedWindow('frame',0)
cv2.resizeWindow('frame',300,300)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('output.avi', fourcc, 20.0, (300,300))

while(cap.isOpened()):
    ret, frame = cap.read()
    if ret:
        vidout=cv2.resize(frame,(300,300)) #create vidout funct. with res=300x300
        out.write(vidout) #write frames of vidout function
        cv2.imshow('frame',frame)
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
    else:
        break
cap.release()
out.release()
cv2.destroyAllWindows()

感谢您对我的问题的关注！

OpenCV-使用Python保存后无法播放视频

2 个答案: